Red Cross launches tornado app

The free program will be available for iPhone, iPad and Android smartphone and tablet users.

It will offer people instant access to local and real-time information, including a high-pitched siren and "tornado warning!" when one is issued, followed by an "all clear!" signal when a tornado warning has expired or canceled.

The app also features steps and checklists to create emergency action plans and locations of open Red Cross shelters.

You can find the free app in the Apple and Google Play stores by searching for American Red Cross.